package nju.software.tagmanager.config;

import nju.software.tagmanager.interceptor.JwtTokenAdminInterceptor;
import nju.software.tagmanager.common.json.JacksonObjectMapper;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;
import springfox.documentation.builders.ApiInfoBuilder;
import springfox.documentation.builders.PathSelectors;
import springfox.documentation.builders.RequestHandlerSelectors;
import springfox.documentation.service.ApiInfo;
import springfox.documentation.spi.DocumentationType;
import springfox.documentation.spring.web.plugins.Docket;

import java.util.List;

/**
 * 配置类，注册web层相关组件
 */
@Configuration
@Slf4j
public class WebMvcConfiguration extends WebMvcConfigurationSupport {

    @Autowired
    private JwtTokenAdminInterceptor jwtTokenAdminInterceptor;

    /**
     * 注册自定义拦截器
     *
     * @param registry
     */
    protected void addInterceptors(InterceptorRegistry registry) {
        log.info("开始注册自定义拦截器...");
        // 对swagger的请求不进行拦截
        String[] excludeKnife4jPatterns = new String[]{"/swagger-resources/**", "/webjars/**", "/v2/**", "/swagger-ui.html/**",
                "/api", "/api-docs", "/api-docs/**", "/doc.html/**"};
        registry.addInterceptor(jwtTokenAdminInterceptor)
                .addPathPatterns("/**")
                .excludePathPatterns("/user/login","/api/**")
                .excludePathPatterns(excludeKnife4jPatterns)
        ;
    }

    /**
     * 通过knife4j生成接口文档
     * @return
     */
    @Bean
    public Docket docket() {
        ApiInfo apiInfo = new ApiInfoBuilder()
                .title("标签管理系统接口文档")
                .version("0.1.1 Beta")
                .description("")
                .build();
        Docket docket = new Docket(DocumentationType.SWAGGER_2)
                .apiInfo(apiInfo)
                .select()
                .apis(RequestHandlerSelectors.basePackage("nju.software.tagmanager.controller"))
                .paths(PathSelectors.any())
                .build();
        return docket;
    }

    /**
     * 设置静态资源映射
     * @param registry
     */
    @Override
    protected void addResourceHandlers(ResourceHandlerRegistry registry) {
        registry.addResourceHandler("/doc.html").addResourceLocations("classpath:/META-INF/resources/");
        registry.addResourceHandler("/webjars/**").addResourceLocations("classpath:/META-INF/resources/webjars/");
    }

    /**
     * @author: raychou
     * @params: [java.util.List<org.springframework.http.converter.HttpMessageConverter<?>>]
     * @return: void
     * @date: 2023/8/30 20:11
     * @description: 扩展spring mvc框架的消息转换器
     * 若没有此配置，LocalDateTime序列化传给前端会是一个数组如2023-10-10 23:59:59会变成 [2023,10,10,23,59,59]
     *
     */
    @Override
    protected void extendMessageConverters(List<HttpMessageConverter<?>> converters) {
        log.info("扩展消息转换器...");
        //创建一个消息转换器对象
        MappingJackson2HttpMessageConverter converter = new MappingJackson2HttpMessageConverter();
        //需要为消息转换器设置一个对象转换器,对象转换器可以将Java对象序列化为json数据
        converter.setObjectMapper(new JacksonObjectMapper());
        //将自己的消息转换器加入容器
        converters.add(0,converter);
    }
}
